Table 1. Mean diameter, angle of repose, Carr’s Index, yield and encapsulation efficiency of samples.
|
samples |
Mean diameter ± σ (µm) |
sphericity |
Angle of repose (o) |
Carr’s Index (%) |
Yield (%) |
Encapsulation efficiency (%) |
Buancy 8h (%) |
Apparent particle density (g/cm3) |
|
|
Untreated PX |
10.75±0.36 | - | 35.8±1.3 | 32.3±0.6 | - | - | - | - | |
| Eu:PX | 1:1 | 250±110 | 0.98±0.02 | 17.5±0.9 | 7.0± 0.2 | 73.8±0.8 | 90.8±0.5 | 62.5±1.0 | 0.5±0.03 |
| 2:1 | 290±80 | 0.96±0.03 | 20.7±1.0 | 10.8±0.3 | 70.6±1.0 | 92.5±0.6 | 77.7±0.9 | 0.29±0.03 | |
| 4:1 | 310±260 | 0.93±0.03 | 19.1±1.5 | 9.1±0.1 | 68.8±0.9 | 95.4±0.4 | 80.2±0.8 | 0.22±0.04 | |
| 6:1 | 380±220 | 0.92±0.02 | 23.0±0.6 | 11.0±0.3 | 65.5±1.1 | 98.3±0.4 | 85.4±1.1 | 0.19±0.04 | |